Bolt-head-trimming machine.



T. A. ELLIOTT.

BOLT HEAD TRIMMING MAOHINE.

APPLICATION FILED JULY 30,1913.

1,102,024. Patented June 30,1914.

12 SHEETS-SHEET 1.

wi/lmeoouz FIG I A WIIW COLUMBIA PLANOCIRAPH co.,WAsH|NuTON. D. c-

T. A. ELLIOTT. BOLT HEAD TRIMMING MACHINE.

APPLICATION FILED JULY 30,1913.

1,102,024, 4 Patented June 30, 1914.

12 SHEETSSHEBT 2.

COLUMBIA PMNOGRAPH CO.,WASHINGTON, 0.5.

T. A. ELLIOTT.

BOLT HEAD TEIMMING MACHINE. APPLICATION TIL-ED JULY s0,1913..

Patented June 30,1914,

12 SHEETS-SHEET 3.

wi bnwqoeo 3 wue M 01 mm M W %MM COLUMBIA PLANPGRAPN co.. WASHINGTON, 04 c.

T. A. ELLIOTT. BOLT HEAD TEIMMING MACHINE.

APPLIGATION FILED JULY 30,1913.

Patented June 30,1914.

12 SHEETS-SHEET 4.

witnesses 42y Wled/amww e COLUMBIA FLANDGRAPH co., WASHINGTON. D. c.

Q T. A. ELLIOTT.

BOLT HEAD TRIMMING MACHINE.

APPLICATION FILED JULY 30,1913- Patented June 30,1914;

12 SHEETS-SHEET 6.

m W .m

m Em T. A. ELLIOTT.

BOLT HEAD TRIMMING MACHINE.

APPLICATION FILED JULY 30,1913.

Patented June 30,1914

12 SHEETSSHEET 7. Y

wwweoge/a: 8/ I F G 8 3 wmzntoz W Z W COLUMBIA PLANOURAPH cm, WASHINGTON, D. c.

T. A. ELLIOTT.

BOLT HEAD TRIMMING MAGHINE.

APPLICATION FILED JULY 30,1913.

Patented June 30,1914.

12 SHEETSSHBBT 8.

FIG-JO CZ, SWIM/MM J'm v COLUMBIA- PLANOGRAPH 60.,WASHINOTON. D. c.

T. A. ELLIOTT.

BOLT HEAD TRIMMING MACHINE.

APPLIQATION FILED JULY 30,1913.

Patented June 30,1914.

12 SHEETS-SHEET 9.

FIG-.1 5 9 COLUMBIA PLANOGRAPH COuV/ ASHXNHON, D. C-

T. A. ELLIOTT.

BOLT HEAD TRIMMING MAGHINE. APPLIO-ATION FILED JULY 30,1913.

1, 1 02,024. Patented June 30, 1914- 12 SHEETS-SHEET 10.

FIGJS igliimiil' M'MEHEUM COLUMBIA PLANOORAPH :04. wAsmNc'roN D. S.

T. A. ELLIOTT.

BOLT HEAD TRIMMING MAGHINE.

APPLICATION FILED JULY 30,1913.

12 SHEETS-SHEET 11.

//6 r min/ M0 Patented June 30, 1914. 1

COLUMBIA PLANOOBAPH C0,,WMHINGTON, v C.

53 mm W604,

aim/ATM T. A. ELLIOTT.

BOLT HEAD TRIMMING MACHINE;

APPLICATION FILED JULY 30, 1913.

12 SHEETS-SHEET 12.

Patented June 30,1914.

1 1 q Vi-kme-meo: ZJZM COLUMBIA PLANOGRAFH co, WASHINGTON. D. c.

UNlTFD STATS THEODORE A. ELLIOTT, OF CRANFORCD, NEW JERSEY.

BOLT-HEAD-TRIMMING MACHINE.

Specification of Letters Patent.

Patented June 36, 1914 Application filed July 30, 1918. Serial No. 782,003.

T all whom it may concern:

Be it known that I, THEODORE A. Enmo'rr, a citizen of the United States, and a resident of Cranford, in the count-y of Jnion and Eitate of New Jersey, have invented certain new and useful Improvements in Bolt-Head- Triirming Machines, of which the following a specification.

This invention relates to improvements in bolt-head trimming machines, and has for its specific object the removal of the excess metal from the'heads of forged bolt blanks. The said heads with the excess metal are made by forging machines, that form the heads at one stroke. It is to be understood that the invention may also be used for other articles that require the removal of similar excess metal and that its construction may be varied without departing from the spirit of the invention, as set forth in the appended clain'xs.

The or anization of this invention resembles somewhat the elements of any ordinary pre with coacting elements.

Figure 1 represents a front elevation of a n'iachine exemplifying the invention. Fig. 2 shows a rear view of Fig. 1, Fig. 3 is a top plan view of Fig. 1, Fig. 4 shows a partial top plan view of the machine, Fig. 5 represents a perspective view of some details, Fig. 6 is a vertical section taken as on the line 6, 6 of Fig. 4, Fig. 7 represents a partialperspective view of the machine partially in section, with the feed mechanism omitted, Fig. 8 shows a partial rear view of Fig. 6 partly in section, Fig. 9 is a top view and section of Fig. 8 on the line 9, 9, Fig. 10 shows a partial elevation of the machine and section on the line 10, 10 of Fig. 4, Fig. F. shows a partial section of Fig. 10 on the line 11. 11, Fig. 12 shows an elevation of the bolt carrier of the machine, Fig. 13 is a top plan view of Fig. 12, Fig. 14 represents a front elevation of a floating frame, Fig. 15 is a top plan view of Fig. 14, Fig. 16 represents a perspective view of a yielding support, Fig. 17 shows a partial section of Fig. 6 on the line 17, 17, Fig. 18 is a front view of Fig. 17, Fig. 19 shows a fragmentary right hand side view of Fig. 6 looking in the direction of the arrow B, Fig. 20 shows a top plan view and section of Fig. 19 on the line 20, 20, Fig. 21 represents a section of Fig. 4 on the line 21, 21, Fig. 22 represents some of the elements of Fig. 21 in a changed position, Fig. 23 shows an elevation of a .1 odified detail, Fig. 24 represents a top plan view of Fig. 23, Fig. 24 shows a section of Fig. 23 on the line 24 24*, Fig. 25 represents a perspective view of a square headed bolt blank with the flash, Fig. 26 shows a button headed bolt blank including the excess metal, Fig. 2? shows a perspective view of a pair of top shear blades, and Figs. 28 and 29 represent perspective views of a pair of trimming tools.

. The invention is represented with'a frame designated in its entirety by the numeral 20 and comprises the columns 21, connected by the upper cross tie 22, and the base 23. A tie piece 24 connects the columns 21. Secondary columns 25 are formed with the col umns 21, and a table 26 connects the columns 21, and tie piece 24. Guide strips 27 are formed with the columns 21. Journal boxes with caps 28 that support the driving shaft 29 are formed with the columns 21. The driving shaft 29 carries the pinion 30 at one end thereof and at the other end it carries the fly wheel 31, the tight pulley 32 and the loose pulley In the columns 21 are formed journal boxes each with an inverted cap against which latter bears a key piece 36 supported in openings in said columns. Screws 38 maintain the key pieces in proper position. With the cross tie 22 is formed a journal box with the cap 39 held in place by means of the bolts 40. A crank shaft 42 with the arms 43 and crank pins 44 is supported in the three journal boxes just described. A. spur gear 45 fastened to one end of the shaft 42 meshes with the inion 30 on the driving shaft 29. At the other end of the crank shaft 42 is fastened the spur gear 46. On the rear faces of the columns 21 and adjacentto their upper ends are bolted ournal boxes with the caps 51, which support the cross shaft 52. A. spur gear 53 fastened on said cross shaft meshes with the spur gear 46. A bevel gear 54 is also fastened to the cross shaft 52. A facing is formed with the frame 20 and which supports a guard casing 61, with which are formed journal bearings 62 and 63. A cross rail 65 having the journal bearings 66, 67 is bolted to the column 21- A vertical shaft 68 has its lower end journaled in the journal bearing 62 and its upper end is journaled in the bearing 66. Abevel gear 72 is fastened to the shaft 68 and meshes with the bevel gear 54. To the lower end of the shaft 66 is fastened a crank arm from which extends a pin 76, and on the latter is journaled roller 77. A spindle has its lower end journaled in a bearing 81 in the base 23 of the frame, and its upper end is journaled in a bearing 63 of the guard casing 61. A disk 82 with the radial slots 83 and having formed therewith the spur gear 8 .1 is fastened to the spindle 80. A central column 85 with the central aperture 86 and foot 87 is bolted to the base 23 by means of the bolts 68. A bed plate 89 is bolted to the column 85 by means of the bolts 90. A carrier drum comprising the upper portion 02 and the lower portion 93 is journaled on the column 85. The portions 92 and 93 are connected by the bolts 941. The said portion 93 has formed therewith teeth 95 which latter mesh with the spur gear 8%. Pairs of supporting fingers are carried by the portion 92 of said drum and are fastened thereto by means of the screws 101, and clearance spaces indicated by the numeral 102 allow the insertion of bolt blanks to be afterward described. In each of the clearance spaces 102 there is adjustably positioned a yielding support, comprising the frame 105 with the split base 106 and the upper shelf 107. A tapered pin 108 with the threaded end 109 bears between the accompanying faces of the split base 106, A nut 110 on the threaded end 109 allows the operator to separate the members of the split base, so that they can impinge against longitudinal guide edges 111 formed with the portion 92 of the drum, and thereby position the yielding supports in proper place. A table 112 has extending therefrom the shank 113 which registers with. an opening in the shelf 107, and a spring 114 encircles the shank 113 and bears between the lower face of the table 112 and the upper face of the shelf 107. A collar 11-5 is fastened to the shank 113.

The bed plate 89 has extending therefrom the vertical leg 116, which latter has formed therewith the annular cavity 117 with the flat runways 11.8, and a depending annular opening 119 extends from the cavity 117 through the said bed plate 89. Single clamp blocks 122, 123 are connected to the said vertical leg 116 by means of the bolts 124:, and a double clamp block 125 is bolted to a projection 126 extending from said leg 116 by means of the bolt 127. A pair of strippers 129 and 130 extend from the vertical leg 116 in alinement with the opening 119. A burring block with inclined top faces 136 is seated in the double clamp block 125, and is held in place by means of the screw 137, its upper surfaces being on the same level with the runways 118. A column 138 has formed therewith the flange 139 and the foot 140, which latter bears on the facing 60 and is bolted thereto by means of the bolt 14:1. Bolts 142 connect the flange 139 with one of the auxiliary columns A burring block 143 with inclined top faces 1 14 is supported and seated in the column 5 138, being fastened in position by means of the screw 1 15, the upper surface of the block" 1 13 being on the same level with the runways 118. A pair of burring blocks each with inclined top faces 151 and the clamp blocks 122, 123 and in the double clamp blocks 125. The latter keyways have fastened thereto splines similar to 156. Between the said vertical leg 116 and the blocks 122, 123 and are located trimming dies indicated in their entirety by the nu meral 160. The dies bear on the bed plate 89 and have formed in their opposite sides keyways 161, that adjustably engage the splines 156. Shims are positioned in the keyways 161 and lock the splines 156 with the dies 160. By varying the thiclrness and locations of the shims 165 the said dies 160 can be latterally adjusted, to vary the distancebetwcen the cutting edges thereof. The said dies are shown with the top faces 166, the cutting edges 167 and inside faces 166.

Gibs 170 are bolted to the columns 21 and with the guide strips 27 form guides for the main slide 171, the latter having formed therewith the cavities 172. Clamp caps 17 3 are bolted to the main slide 1.71 and secure in each of said cavities a pair of shear blades indicated in their entirety by the numeral 17 5. The shear blades are represented with the cutting edges 17 6, longitudinal faces 177 and 178. The accompanying faces 177 of each pair of shear blades have interposed be tween them the shims 179, to enable adjust ment between the cutting edges 17 6, so that the latter can properly coiiperate with the cutting edges 167 of the trimming dies 160. Shims not shown are also placed in the cavities 172, and bear against the faces 178 to coact with the shims 17 9. A lug extends from the front face of the main slide 171 and a perforated boss 186 is formed with. one of the clamp blocks 173. punch 187 is held in the perforation of boss 186, by

means of the set screw 183 and its upper T face abuts against the lower face of the lug 185. From the rear face of the slide 171 extends the partially perforated lug 192 in which is secured the punch 193, by means of the set screw 19 1. Connecting rods 195 are pinned at their lower ends to the main slide 171 by means of the pins 196. The upper ends of the said connecting rods are sup ported on the crank pins On the shaft 68 is secured the cam 200. In the bearing 67 is journaled a sleeve 201 having formed therewith the arm 202 and to which is splined the spindle 203 by means of the spline 204. On the spindle 203 is adjustably fastened the thrust collar 205 by means of the set screw A hanger 207 extends from the cross rail and has extending therefrom a pin 208 on which is fulcrumed the rock lever 209. The latter at one end carries the pin 212 on which is journaled the roller 213, that is engaged bythe cam 200. The other end of the rock lever 209 carries the pin 214 on which is supported the thrust sleeve 215 which latter is guided on the spindle 203. To the lower end of the spindle 203 is secured the turning tool 216 having the fingers 217.

A hinge pin 220 extends from the cross rail 65 and has fulcrumed thereon the boss 221 with the arm 222. A pin 223 on said arm has journaled thereon the roller 224 in about the central portion thereof. A pin 225 connects the arm 222 with one end of the link 226. The other end of the link 226 is pinned to the arm 202 by means of the pin 228. A boss 230 is journaled on the pin 220 and has extend ng therefrom the arm 231, the end of which latter carries a pin 232 for the roller 233. A bolt 234 connects the arms 222 and 231. A cam 235 is fastened to the vertical shaft 68 and coacts with the arm 222, and a second cam 236 on said shaft coacts with the arm 231.

A hollow bracket 242 bears on and is bolted to base 23 of the frame of the ma chine by the bolt 243, and has extending from one side a flange 244, which is bolted to one of the auxiliary columns 25, by means of the bolts 245. The bracket 242 is formed at its upper end with the roof 246 and in one of its side walls is formed the opening 247. Ribs 248, 249 extend from the body of the bracket and the rib 248 carries the bolts 250. A chute with the roof 255, runways liners 254 and the depending side 256, with the cu ved openings 257 is adju -tably secured to the rib 248, by means of the bolts 250. From the roof 246 of said hollow bracket extends the boss 258 in which is secured the pin '260. A rock lever with the arms 263 and 264 is fulcrumed on the pin 260. At the end of the arm 263 is located the pin 265 on which is pinned the eye 266 of the shifter rod 267 having the shoulder 268. J am nuts 269 are carried on the rod 267. A guide bracket 270 is bolted to the slide 171 and has a guide opening 272 for the rod 267.

The arm 264 carriesthe pin 27 5 on which is suspended a spring connection, comprising a frame piece 276 with the legs 277, the latter being joined by the tubular end portion 278. A rod 282 extends through the tubular portion 278 into a cavity 279 in the frame'piece 276. A collar 283 is fastened to the rod 282 and a spring 284 bears between said collar and the said tubular portion 278. A short shaft 285 is journaled in the walls of the bracket 242 and has fastened thereto one end of the arm 286. The other end of the latter has fastened thereto a pin 287 which engages the lower end of the rod 282. in arm 290. practically at right angles to the arm 286 has one end fastened to the short shaft 285, and the other end thereof engages a pin 291 carried on a floating frame having the frame sides 292 and 293. End cross pins 294 and connect the said frame sides 292 and 293. A link 296 connects the pin 295 with a pin 297 supported in the bracket 242. On the pin 294 is supported a bolt carrier designated in its entirety by the numeral 300. The carrier comprises the head 301 which has formed therewith the arm 302 and the leg 303. A cavity 304 with an opening at its lower end. in the carrier has connected thereto the guide strips 305 and 306. A rising runway 311 is bolted to the column 138 by means of the bolt 312. A guide plate 313 is bolted to the clamp'block 125 by means of the bolt 314.

In Figs. and 24 a modified form of supporting fingers is indicated at 325, 326, carried on the portion 92 of the carrier drum. The fingers are grouped in pairs as already described. .The fingers are beveled at their upper ends 327 and are fastened to the portion 92 by means of the screws Each finger 326 is beveled at its upper end 331 and has formed therein the l ngitudinal V shaped groove in one of its gee, to center the belt blank located be een the fingers. The fingers 326 are ea .h connected to the portion of the carrier drum by means of a pivot bolt at the lower end thereof. and a guide screw "2 engages an elongated opening in finger and is in threaded engagement b said portion 92. A spring 340 carried on the drum bears against the upper end of the fir ger, to position the finger so that it will b r the bolt blank to keep it in proper position.

operate the machine power is transmitted to the. pulley 32 by a belt not shown, which turns the driving shaft 29. The pinion 30 the shaft 29 turns the spur gear and with it the crank shaft 42. The 'inslide 171 is reciprccated by means of one connecting rods 195., which latter are lctnated by the crank shaft 42. The shear blades 11... the punches 187 and 193 and guide bracket 270 reciprocate with said main slide 171. The rock lever having the arms 264 is rocked by the reciprocations of said he ca uide bracket i270 and. thereby the frame 76 is moved up and down, which in scilh: The arm 290 is the floating I and 293 to move to ano 300 is thereby moved by the said floating iiame a pproximately in the are of a cir le. The bolt blanks 330 with the h 1 having the i er the bolt blan 0J3 with the heads having the ex cred by from r 3 poi-tn. lilach reri l cates the bolt n to rccei we a -v re- 11 ()0, which locates t i i s 10% and on the proi alien of the main carrier 300 in boltblank. The

proper noel spur gear the crank sh then v the shaft 5 no CmiltlUIlS of the latter are transmitted to the vertical shaft s 7 Z and The crank arm revolutions coacts with the g; the disk 82 to rotate, and on is iven to the spur gear 7 thereby rot;

s4. teeth 95 mesaing with the teeth of the t -l, ca 5 t .1 drum luiviug the lower portion 93 and 1e upper portion 92,

to rotate about the ce tral column and thereby the s'iupporting fingers 100 with their accompanying yieldin supports having the tables 11.1, are revolved intermittently.

Referring particularly to Figs. 7 and 11, the bolt blank is indicated at A as delivered from the bolt carrier 300 upon the table 112. The drum having the portions 92, 93 rotates and carries the bolt blank to the position indicated at A, and the shear blades 175 at practically the same time rise and allow the bolt blank to attain the latter position. The belt blank is now still supported on the yielding support with the table 112 and between the faces 168 of the trimming dies The main slide 171 now descends, and the cutting edges 176 of said shear blades 175 descend, the cutting edges straddling a pair of the sides of the head of the bolt blank and. the flash or excess metal is sheared oil", the bolt descending by reason of the flexible appurtenances connected with the table 112. Should the bolt blank be positioned between the trimming dies 160 so that the planes of the sides of the head of bolt blank are located in position making angles with the cutting edges 176 of the shear blades 175, the coaction of the latter with the flexibility of the support causes the bolt blank to be properly positioned with the sides of the head parallel to the said cutting edges 176 of the shear blades. The slide 171 now rises and the drum attains a second intermittent position of its revolution and the partially sheared bolt blank is moved to the position indicated at A between the burring blocks 150 shown enlarged in Fig. and in which position any slight bur or fin 360 that may have resulted from the shearing of the flash 356 or excess metal 355 is disposed of as follows: The slide 171 with the punches 187, 193 descend and the punch 193 bearing upon the upper face of the head of the bolt blank, causes the bur or fin 360 to be curled in and pressed against the lower face of the bolt blank head, by reason of the coaction of the burring blocks 150. The main slide 171 rises again and the drum makes another intermittent movement of its revolution, and carries the partially sheared and burr d bolt blank to the position indicated at 11", which is plainly shown in Figs. i and 7. in this last location the head of the bolt blank is in proper alincment to be engaged by the fingers 217 of the turning tool 216. The sleeve 215 descends by virtue of the rotations of the vertical shaft 68, and the cooperation of the cam 200, and rock 209. Upon the descent of the sleeve 215, the turning tool 216 descends by gravity and the fingers-i 217 engage the sides of the bolt head. The further rotation of the shaft 68 causes the coaction of the cam 22")? and arm 222, which with the link 226 and sleeve 201 turns the tool 216 axially through an arc of 90 degrees, and by reason of the co-action of the fingers 217 with the sides of the bolt head, the bolt is also axially turned through an arc of 90 degrees. Upon the further rotation of tile shaft 68 the turning tool 216 rises to clear the fingers 217 from the head of the bolt bla'nl-t. The drum new again makes a partial movement of its revolution, and carries the blank to the position of rest indicated at A The drum again makes a partial movement of its revolution and earri es the bolt blank to the position indicated at A the main slide 171 at the same time rising to the end of its upstroke. In this position the, boil. blank is brought between the faces 168 of the second pair of trimming dies 160. The main slide descends and the second pair of shear blades 175 shears off the flash 352 or excess metal 355, still re maining adjacent to the other faces of the head of the bolt blank. The main slide 171 again rises while the drum makes another partial movementof its revolution and carries the bolt blank in alinement with the bur blocks 125 and 141-3 indicated at A. Next the main slide 171 descends and forces the punch 187 against the top surface of the he d of the bolt blank. and causes the lower of the head of the bcltblank to bear against the burring blocks 135, 1 13 by virtue of which anyvburs or fins resulting from the second shearing operation are curled under and pressed against the under side of the head of the bolt blank. The main slide 171 again rises and the drum again makes an intermittent movement and delivers the trimmed and burred bolt blank to the rising discharging runway 311 and its head at the same time bears against the guide plate 313, thereby raising the barrel of the bolt blank clear of the table 112. The bolt blank then swings clear of the supporting fingers 100, by reason of the bolt blank hanging with one side of its head supported on the runways 311, and the opposite side of the head bearing against the guide plate The bolt is discharged from its latter position, by the next succeeding bolt blank when the latter travels up on said rising runway 311, at the next succeeding partial rotation of the drum, when the supporting fingers 100 will be positioned at A which completes the cycle of operations. t will be understood thatthe main slide 171 makes one double stroke for each intermittent partial revolution of the drum. The oflice of the aperture 86 in the central column 85 is to carry away the flash or excess metal, resulting from the trimming of the heads of the bolt blanks. v

Having described my invention what I desire to secure by Letters Patent and claim is:

1. In a machine the combination of a pair of accompanying dies, a pair of accompanying shear blades for said dies, to remove the flash or excess metal from a pair of sides oi a bolt blank during a reciprocation of the shear blades.

2. In a machine, the combination of a pair of dies, a pair of shear blades coacting with the dies, a second pair of dies, and pair of shear blades for the latter dies and means to feed bolt blanks to the first pair of dies and shear blades, to remove excess metal from a pair of sides of a bolt blank, and means to position the bolt blank for the second pair of dies and their shear blades, to removethe excess metal from a second pair of sides of the bolt blank.

3. In a machine the combination of means to trim the head of a bolt blank to remove the flash or excess metal formed during the formation of the head thereof and means to obliterate the bur resulting from the re moval of said flash or excess metal.

at. In a machine the combination of means to trim the head of a bolt blank on a pair of opposite sides of said head to remove the flash or excess metal, means to obliterate the bur resulting from the removal of said flash or excess metal, means to trim a second pair of sides of said head to remove the flash or excess metal accompanying the latter pair of sides and means to obliterate the bur resulting from the removal of the flash or excess metal from the second pair of sides.

5. In a machine the combination of means to trim the head of a bolt blank on a pair of opposite sides of saidhead to remove the flash or excess metahaneans to obliterate the bur resulting from the removal of said flash or excess metal, means to partially rotate the bolt blank, means to trim a second pair of sides of said head after said partial rotation and means to obliterate the bur resulting fromthe removal of the flash or excess metal from the second pair of sides. 6. In a machine the combination of a pair of trimming dies, a pair of shear blades coacting with the dies to trim a pair of sides of the head of a bolt blank, a pair of burring blocks and a coacting punch in the machine, means to locate the head of the bolt blanks in proper position for the'burring blocks and punch, means to actuate the punch to obliterate the bur from the head of the bolt blank resulting from the trimming thereof, means to turn the bolt blank, a second. pair of. shear blades and a pair of dies coacting therewith to operate on the bolt blankin its turned position to trim another pair of sides of said head, and a second pair of burring blocks and punch coacting with the latter to obliterate the bur from the head resulting from the operation of the second pair at trimming dies and shear blades. I

7. In a machine the combination of a drum, means to intermittently rotate the thereof, a punch coacting with the burring blocks to obliterate the bur resulting from the trimming of the bolt blank, means to give the bolt blank a partial rotation in another position of the drum, a second pair of trimming dies, and a second pair of shear blades coacting with the latter dies to trim the bolt blank in another position of the drum, a second pair of burring blocks and a punch coacting therewith to obliterate the bur caused by the trimming resulting from the second pair of trimming diesand their shear blades at a further changed position of the drum.

8. In a machine the combination of a pair of trimming dies, :1 pair of shear blades 00- acting with the dies to remove the flash from a pair of sides of the head of a bolt blank, a pair of burring blocks and a coacting punch in the machine, means to locate the head of the bolt blanks in proper position for the burring blocks and punch, means to actuate the punch to obliterate the bur from the head of the bolt blank resulting from the trimming thereof, means to turn the bolt blank, a second pair of shear blades and pair of dies coacting therewith to operate on the bolt blank in its turned position to remove further flash therefrom and a second pair of burring blocks and a punch coacting with the latter to obliterate the bur from the head resultin from the operation of the second pair of trimming dies and of mini dies, and a second pair of shear blades coactlng with the latter dies to retrieve flash from the bolt blank in an- ZlOtl of the drurm a second. pair of "mg blocks and a punch coacting thereth to obliterate the bur resulting from removal of the flash with the second pair of trimming dies and their shear blades at a further changed. position of the drum.

110. In a machine the combination of a frame, a hollow bracket having an opening in one side wall thereof fastened thereto, a floating frame in said hollow bracket, a reciprocating element in the machine, connections between said element and the floating frame to impart a movement to the floating frame, a bolt carrier suspended on the floating frame, a chute having runways connected to the hollow bracket and registering i with the opening in the side wall thereof.

it. its a machine the combination of a frame, a hollow bracket having an opening in one site wall thereof fastened thereto, a H frame in said hollow bracket, a reg element in the machine, conneceen said element and the floating frame to in'ipart a curvilinear movement to the floating frame, a bolt carrier suspended on the floating frame, a chute having runways a djustably connected to the hollow bracket and registering with the opening in the side "wall thereof, the chute positioned to incline its runways.

in a machine the combination of a carrier drum, means to interi'nittently rotate the drum, pairs of si'ipporting fingers carried on the drum, and a yielding support located between each pair of fingers and secured to the drum.

in a machine the combination of a carrier drum, means to intermittently rotate the drum, pairs of supporting fingers carried by the drum and a yielding support lo cated between each pair of lingers and adjustably connected to the drum.

let. in a machine the combination of a central column, carrier drum having teeth at one portion thereof journaled on the column, a rotating shaft journaled in the machine, a crank arm fastened to the shaft, :1 pin extending from the arm, a roller ournaled on the pin, a spindle journaled adjacent to the shaft, a disk having radial slots and a spur gear formed therewith fastened to said spindle, the said slots consecutively engaging the said roller and the spur gear of the disk meshing with the teeth of the carrier drum.

15. In a machine the combination of a central column, a carrier drum journaled thereon, means to intermittently rotate the drum, a bed plate secured to the upper end of the central column, a vertical. leg having an annular cavity with runways and a de pending annular opening formed with the bed plate, means on the drum to support bolt blanks, means coacting with the drum to trim the bolt head, the bolt blank traveling through the said annular cavity and opening during the operation of the ma chine.

16. In a machine the combination of a carrier drum, means to support bolt blanks on the drum, a turning tool for the machine adapted to engage the head of a bolt blank, means to oscillate the turning tool and means to axially reciprocate said tool.

17. In a machine the combination of a turning tool, a rotary shaft journaled in the machine, a cam carried on the shaft, a linked connection coacting between the cam and turning tool to oscillate the latter, a second cam on the rotary shaft and connecting means between the latter cam and the turning tool. to axially reciprocate the latter.

18. In a machine of the character described the combination of a rotary shaft, a pair of enacting cams fastened to said shaft, a hinge pin in the machine, an arm with one end. supported on the hinge pin, a turning tool, a sleeve splined to the turning tool, an arm extending from the sleeve, a link with one end pinned to the latter arm and the other end thereof pinned to the arm that has one end supported on the hinge pin, a roller journaled on the latter arm in the path of one of said cams, a second arm supported on the hinge pin and fastened to the first arm that is supported on said hinge pin, a roller journaled on the latter arm in the path of the second cam, the cams with their coacting elements oscillating the turning tool.

19. In a machine of the character described the combination of a rotary shaft, cam secured to the shaft, a rock lever fulcrumed in the machine, a roller journaled at one end of the lever engaged by said cam, a pin secured to the other end of the lever, a turning tool guided in the machine, a collar fastened to the turning tool, a thrust sleeve slidably supported on the tool and hearing at its upstroke against said collar, the said sleeve also hinged to the pin secured to the said lever, the combination of elements coaoting to produce upstrokes for the turning tool.

20. In a machine the combination of a frame, a bed plate supported in the frame having a vertical leg, two pairs of trimming dies supported on said bed plate. clamp blocks bearing on the bed plate, bolts connecting the vertical leg of the bed plate and said clamp blocks to clamp the trimming dies in place, a rotating carrier drum journaled in the machine, means on the drum to support bolt blanks, a main reciprocation slide for the machine, means to reciprocate the slide, and a pair of shear blades for each pair of trimming dies car ried on the slide.

21. In a machine the combination of a frame, a bed plate supported in the frame having a vertical leg, two pair of trimming dies supported on said bed plate, clamp blocks bearing on the bed plate, bolts connecting the vertical leg of the bed plate and said clamp blocks to clamp the trimming dies in place, a reciprocating slide guided in the frame and shear blades carried on the slide coacting with the trimming dies.

22. In a machine the combination of a movable element to support an object to be operated upon, dies supported in the machine, a reciprocating element in the machine, shear lades connected to the latter element coacting with the dies and means in the machine to prevent the dislodgment of the object operated upon during the upstrokes of the shear blades.

23. In a machine the combination of a frame, a bed plate supported in the frame, a carrier drum journaled in the frame, means to support an object to be operated upon connected to the drum, trimming dies supported on the bed plate, a reciprocating slide guided in the frame, shear blades connected to the slide coacting with the trimming dies, and strippers positioned in the machine to prevent the dislodgment of the object operated upon during the upstrokes of the shear blades.

24:. In a machine the combination of a pair of trimming dies, means to vary the distance between the cutting edges of the dies, a movable element in the machine, a pair of shear blades connected to said element and coacting with the dies.

25. In a machine the combination of apair of trimming dies, means to vary the distance between the cutting edges of the dies, a movable element in the machine, a pair of shear blades connected to said element and means to vary the distance between the cutting edges of the shear blades.

26. In a machine the combination of a bed plate, a pair of splines extending from the bed plate, a pair of trimming dies having keyways formed thereon to register with said splines, shims in the keyways to coact with the splines to position the trimming dies varying distances apart, a movable element in the machine, a pair of shear blades adjustably connected to the said element, and

shims between the shear blades to varyflthe distance between their cutting edges.

27. In a machine the combination of a reciprocating element, a chute for an object to be oper ted upon in the machine, a bracket in the machine having an opening registering with said chute, a rock lever fulcrumed on the bracket, a connection between one end of the rock lever and the reciprocating element, a pivot fulcrumed in said bracket, a pair of arms practically at right angles to each other fastened to said pivot, a pair of frame sides pinned to one of said arms, a flexible connection between the other arm and the rock lever, a link with one end pinned to the frame sides and the other end thereof pinned to said bracket anda carrier for an object to be operated upon carried by said frame sides.

28. In a machine the combination of a chute for objects to be operated upon, a carrierpositioned at the discharge end of the chute to receive said objects, means to move the carrier to and fro at right angles to the chute, the carrier comprising a head to connect it to a moving element, the said head having a cavity With an opening at its lower end and a leg extending from below said opening.

29. In a machine the combination of a driving shaft, means to rotate the shaft at one end thereof, a pinion fastened to the other end of the shaft, a crank shaft journaled in the machine, a gear fastened to one end of the crank shaft meshing with said pinion, connecting rods with one end of each supported by the crank shaft, a main slide in the machine connected to the other ends of the connecting rods, a cross shaft jonrnaled in the machine, a gear fastened to one end of the cross shaft, a gear on the crank shaft meshing with the gear on the cross shaft, a bevel gear on the cross shaft, a vertical shaft journaled in the machine, a bevel gear on the latter shaft meshing with the bevel gear on the cross shaft, a carrier drum for an object to be operated upon journaled in the machine, connections between said drum and said vertical shaft, a turning tool in the machine and connections between the vertical shaft and the turning tool.

30. In a machine for trimming bolt blanks the combination of a rotating carrier drum, means to remove excess metal from the heads of the bolt blanks'operated upon, pairs of clear of the yielding supports and then discharging them from the machine.

31.111 a inahine of the character described the combination of a rotating carrier drum, means to remove excess metal from the heads of bolt blanks operated upon, pairs of supporting fingers for the drum, one of each pair of lingers securely fastened to the drum, one linger of each pair pivoted at one end to the drum and the other end thereof guided to bear against a bolt blank located between the pair of fingers.

In a machine of the character described the combination of a rotating car-- rier drunn means to remove excess metal from the head of bolt blanks operated upon, pairs of sup mrting fingers for the drum, one of each pair of fingers securely fastened to the drum, one of each pair pivoted at one end to the drum and having an elongated opening in about its central portion, a guide screw on the drum registen ing With said elongated opening and a spring with one end fastened to the carrier drum and the other end bearing against the pivoted finger.

33. In a machine of the character described the combination of a pair of dies, a pair of shear blades for the dies means to reciprocate the shear blades and means to position a bolt blank relatively to the dies and shear blades to remove excess metal from the head of a bolt blank.

3 t In a machine of the character described the combination of two pair of dies,

a pair of shear blades for each pair of dies, means to reciprocate the shear blades and means to position bolt blanks relatively to the dies and shear blades to remove excess metal from the heads of the bolt blanks.

Signed in the borough of Manhattan in the county of New York and State of New York this 29th day of July A. D. 1913.

THEODORE A. ELLIOTT.

Witnesses A. A. nn Bonnnvlnnn, A. N. BAKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

